Pros: Superior build quality, excellent image quality, Nice features/settings, Quick Start-up time, Solid Operation, easy to use, Lightweight/Portable, good battery life
I bought the first 20D in early 2005 and now use three with a huge assortment of EOS lenses. The program card in one got fried but not because of the camera itself, had a bad EF 17-85 that that jamed up between 17-30 mm and over drove the camera software.
It fast, and if you take the time to get into the mini instructions book will produce the quality images we all seek.
I still have a problem with it not being able to lock on focus in no light in auto or program mode? I just went to manual and its fine. You can push it easily to 1600 asa for improved image stabilization :)
I am more challenged with the canon 380 flash system but that is probably more lazy then problem ... Lots of functions that need an indepth study to master ... all in due time :)